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AMD Radeon R9 285

Graphics Processor
Tonga
Cores
1792
TMUs
112
ROPs
32
Memory Size
2 GB
Memory Type
GDDR5
Bus Width
256 bit
The Radeon R9 285 was a performance graphics card by AMD, launched in September 2014. Built on the 28 nm process, and based on the Tonga graphics processor, in its Tonga PRO variant, the card supports DirectX 12.0. The Tonga graphics processor is a large chip with a die area of 366 mm² and 5,000 million transistors. Unlike the fully unlocked Radeon R9 285X, which uses the same GPU but has all 2048 shaders enabled, AMD has disabled some shading units on the Radeon R9 285 to reach the product's target shader count. It features 1792 shading units, 112 texture mapping units and 32 ROPs. AMD has placed 2,048 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 918 MHz, memory is running at 1375 MHz.
Being a dual-slot card, the AMD Radeon R9 285 draws power from 2x 6-pin power connectors, with power draw rated at 190 W maximum. Display outputs include: 2x DVI, 1x HDMI, 1x DisplayPort. Radeon R9 285 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card measures 221 mm in length, and features a dual-slot cooling solution. Its price at launch was 249 US Dollars.

Graphics Processor

GPU Name
Tonga
GPU Variant
Tonga PRO
(215-0851128)
Architecture
GCN 3.0
Foundry
TSMC
Process Size
28 nm
Transistors
5,000 million
Die Size
366 mm²

Graphics Card

Release Date
Sep 2nd, 2014
Generation
Volcanic Islands
(R9 200)
Production
End-of-life
Launch Price
249 USD
Bus Interface
PCIe 3.0 x16

Relative Performance

3%
GeForce 210
4%
GeForce 9400 GT
5%
Radeon HD 4550
7%
Radeon HD 5450
8%
Radeon HD 6450
9%
GeForce GT 520
11%
GeForce GT 220
14%
GeForce GT 430
14%
Radeon HD 5570
15%
Radeon HD 4670
16%
GeForce GT 440
16%
GeForce GT 240
19%
GeForce 9600 GT
20%
Radeon HD 5670
21%
GeForce GT 640
22%
GeForce 9800 GT
23%
Radeon HD 6670
24%
Radeon HD 4830
25%
Radeon HD 4770
27%
Radeon HD 4850
27%
GeForce GTS 250
28%
GeForce GTS 450
29%
Radeon HD 5750
33%
Radeon HD 7750
34%
Radeon HD 5770
34%
GeForce GTX 260
35%
Radeon HD 4870
35%
Radeon Vega 8
35%
GeForce GTX 550 Ti
35%
GeForce GTX 650
37%
Radeon HD 5830
39%
Radeon HD 6790
40%
Radeon HD 4890
41%
GeForce GTX 460
42%
Radeon RX Vega 11
42%
GeForce GT 1030
43%
GeForce GTX 275
43%
Radeon HD 7770 GHz Edition
43%
GeForce GTX 280
44%
GeForce GTX 465
46%
Radeon HD 6850
47%
GeForce GTX 285
50%
Radeon HD 5850
51%
GeForce GTX 650 Ti
51%
Radeon HD 7790
53%
Radeon RX 550
53%
GeForce GTX 470
55%
Radeon HD 6870
59%
Radeon HD 5870
61%
GeForce GTX 560 Ti
61%
Radeon HD 4870 X2
62%
GeForce GTX 750 Ti
62%
Radeon HD 6950
65%
GeForce GTX 295
65%
GeForce GTX 650 Ti Boost
66%
Radeon HD 7850
67%
GeForce GTX 480
70%
Radeon HD 6970
71%
Radeon R7 265
73%
Radeon R7 370
73%
Radeon RX 560
73%
GeForce GTX 660
73%
GeForce GTX 570
79%
GeForce GTX 950
80%
Radeon HD 7870 GHz Edition
82%
Radeon R9 270X
83%
GeForce GTX 660 Ti
83%
GeForce GTX 580
84%
GeForce GTX 1050
84%
Radeon HD 7950
85%
Radeon RX 460
85%
Radeon HD 5970
88%
GeForce GTX 760
94%
GeForce GTX 670
97%
GeForce GTX 960
99%
Radeon R9 380
100%
Radeon R9 285
101%
Radeon HD 7970
102%
GeForce GTX 680
104%
GeForce GTX 1050 Ti
107%
GeForce GTX 770
110%
Radeon HD 6990
112%
Radeon R9 280X
114%
GeForce GTX 590
114%
Radeon HD 7970 GHz Edition
126%
GeForce GTX 780
139%
Radeon RX 470
141%
Radeon R9 290
150%
Radeon R9 390
151%
Radeon R9 290X
153%
GeForce GTX 970
155%
GeForce GTX TITAN
156%
Radeon RX 570
157%
GeForce GTX 780 Ti
159%
Radeon R9 390X
160%
Radeon HD 7990
161%
Radeon RX 480
162%
GeForce GTX 690
171%
Radeon RX 580
174%
GeForce GTX 980
177%
GeForce GTX 1060 6 GB
177%
Radeon R9 FURY
178%
Radeon RX 590
194%
Radeon R9 295X2
198%
Radeon R9 FURY X
201%
GeForce GTX 980 Ti
216%
GeForce GTX TITAN X
228%
GeForce GTX 1070
238%
Radeon RX Vega 56
258%
GeForce GTX 1070 Ti
265%
GeForce RTX 2060
265%
Radeon RX Vega 64
271%
GeForce GTX 1080
312%
GeForce RTX 2070
312%
Radeon VII
327%
TITAN X Pascal
335%
GeForce GTX 1080 Ti
362%
GeForce RTX 2080
419%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080

Clock Speeds

GPU Clock
918 MHz
Memory Clock
1375 MHz
5500 MHz effective

Memory

Memory Size
2 GB
Memory Type
GDDR5
Memory Bus
256 bit
Bandwidth
176.0 GB/s

Render Config

Shading Units
1792
TMUs
112
ROPs
32
Compute Units
28

Theoretical Performance

Pixel Rate
29.38 GPixel/s
Texture Rate
102.8 GTexel/s
FP16 (half) performance
3,290 GFLOPS (1:1)
FP32 (float) performance
3,290 GFLOPS
FP64 (double) performance
205.6 GFLOPS (1:16)

Board Design

Slot Width
Dual-slot
Length
8.7 inches
221 mm
TDP
190 W
Outputs
2x DVI
1x HDMI
1x DisplayPort
Power Connectors
2x 6-pin
Board Number
C766

Graphics Features

DirectX
12.0 (12_0)
OpenGL
4.6
OpenCL
2.0
Vulkan
1.1.96
Shader Model
6.0

Tonga GPU Notes

CLRX Version: GCN 1.2
Graphics/Compute: GFX8 (gfx802)
Display Core Engine: 10.0
Unified Video Decoder: 5.0
Video Compression Engine: 3.0
ROCm Support

Retail boards based on this design (14)

Name GPU Clock Memory Clock Other Changes
ASUS Strix R9 285 OC 954 MHz 1375 MHz 10.6 inches/269 mm
Club 3D R9 285 royalQueen 945 MHz 1375 MHz 8.86 inches/225 mm
GIGABYTE R9 285 WindForce 2X OC 973 MHz 1375 MHz
HIS R9 285 IceQ X2 OC 938 MHz 1375 MHz 10.63 inches/270 mm
HIS R9 285 Mini IceQ X2 OC 938 MHz 1375 MHz 8.27 inches/210 mm
MSI R9 285 Gaming OC 973 MHz 1375 MHz 10.34 inches/263 mm
PowerColor TurboDuo R9 285 OC 945 MHz 1375 MHz 8.16 inches/207 mm
Sapphire Dual-X R9 285 918 MHz 1375 MHz 10.4 inches/264 mm
Sapphire Dual-X R9 285 OC 965 MHz 1400 MHz 10.4 inches/264 mm
Sapphire R9 285 ITX Compact 918 MHz 1375 MHz 6.73 inches/171 mm, 1x DVI 1x HDMI 2x mini-DisplayPort
Sapphire R9 285 ITX Compact OC 928 MHz 1375 MHz 6.73 inches/171 mm, 1x DVI 1x HDMI 2x mini-DisplayPort
VTX3D R9 285 X-Edition 945 MHz 1375 MHz 8.16 inches/207 mm
XFX R9 285 Black Edition 975 MHz 1375 MHz
XFX R9 285 Double Dissipation 918 MHz 1375 MHz